Spark-plug cleaner, tester, and adjuster



W. H. WALLACE. SPARK PLUG CLEANER, TESTER, AND ADJUSTER. APPLICATION FILED JUNE 24,1919.

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lllll 'llillflhlldfhllf H. 'WAEEACE, E .hl'EillT JEESEY.

SEfllftlf-Elhlltil CLEANER, TESTER, ft ADJUSTER.

application filed June at, this.

To all whom it may concern Be it known that l, WILLIAM H. Watnacn, a citizen of the United fitates, residing in the city of Newark, county of Essex, and dtate of ew dersey,have invented certain new and useful improvements in bpark- Elug Cleaners, 'lesters, and Adjusters, of

which the following is a full, clear, and enact description, such as will enable others slrilled in the art to which it pertains to malre, construc t, and use the same, referating spark-plug.

in order to remove the carbon from the electrodes and to properly adjust the same,

it has heretofore been common to employ any handy tool or device which was available, such as, for instance, an ordinary penlrnife, screw-driyer, or a tile.

ft is an objectof the present invention, to provide a device of exceedingly simple, efficient and inexpensive construction which can be conveniently carried in the poclret or tool-boa, and by the use of which a fouled spark plug can be readily freed from carbon, the electrodes thereof brightened and properly adjusted, and the spark-plug tested.

present invention therefore consists in t e novel construction of a sparlr-plug cleaner, tester and adjuster embodying the principles herein above mentioned, and of a character to be more full described in the following specification. 3 his invention consists furthermore in the several novel arrangements and combinations of the various parts, as well as in the details of construction of the same, all of which will be hereinafter more fully set forth and then final y embodied in the clauses of the claim which are appended to this specification,

specification of Jtetters Patent.

Patented duly id, fdgh, serial lilo. 3%,tlt.

The invention is fully illustrated in the accompanying drawings, in which-- F igure 1 represents a side elevation of a spark-plug, partly in section, illustrating my improved device, in dotted lines, applied to the plug for testing the same;

Figs. 2, 3 and d represent, respectively, front, top and rear views of myimproved device; and

Eig. 5 represents a transverse sectional view, on an enlarged scale, taken on line w-w of lhig. 2.

fiimilar numerals of reference indicate corresponding parts throughout the specification and drawings.

do far as the eneral construction of the plug is concerne it may be of any desired form or construction.

lln the accompanying drawings my -im 7 proved device is represented as consisting of a metallic blade 1 and a non-conductive handle Q of any suitable material, preferably wood, secured thereto.

The metallic blade is hardened and in its preferred form is of rectangular cross-section, the longitudinal edge 3 and the end edge lof the front thereof being beveled to provide a scraping or cutting surface.

The front surface of the blade is further provided with a filing surface as at 5.

lhe rear surface of the blade near the front edge thereof is formed with a recessed or cutaway portion 6, so as to provide a suitable gage on the device having a thickness corresponding with the proper width of the spark-gap, and which is intended to be inserted between the electrodes of the plug, whereby the distance therebetween ma at all'times be properly adjusted.

t will thus be seen that by the employment of the file 5, all carbon can be removed from the electrodes and the same can be brightened; by the employment of the cutting or scraping surface formed on the longitudinal edge 3, the annular cavity of the spark-plug casing can be freed from carbon; and by the emploent ofthe cutting or scraping surface formed on the end edge t of the blade the front of the casing can be scraped; and further by the employment of the recessed or cutaway portion 6 of the device which is inserted between the electrodes, the sparlr-gap may be properly adjusted.

its illustrated in big. 1 of the drawlns, if the device is employed as therein Eli til

lllli ltd cated, a proper test of the spark-plug can be made.

Experience has demonstrated that the organization above described, is a highly efficient one, and while I have shown the preferred embodiment of my invention, I do not care to be limited to the exact structure shown and described, as minor variations thereof may be made by anyone skilled in the art. It is, of course, to be understood that this device can be efi'ect'ively used for filing, brightening, and spacing the contact points on coils, etc.

I claim 1. A device of the character described, consisting of a straight metallic blade, a non-conductive handle therefor, said blade being provided wit-h a longitudinal and a transverse scraping edge, a filiiig surface arranged upon one of the longitudinal sides of said blade, and a recessed reduced spacing portion arranged on the opposite side and near one end thereof.

2. A device of the character described, consisting of a straight metallic blade, said blade being provided with a lon itudinal and a transverse scraping edge, a ii in surfacearranged upon one side of said filade, and a recessed reduced spacing portion arranged on the opposite side and near one end thereof.

"This specification signed and witnessed this 23d day of June, 1919.

WILLIAM H. WALLACE.

Witnesses:

FREDK C. Frsmm, FERDINAND Now. 

